308 citations · 1.8k across the 76 of their papers we have counts for
8 papers · 2 filters
Any Clifford+T circuit can be controlled with constant T-depth overhead
Isaac H. Kim, Tuomas Laakkonen
Since an n-qubit circuit consisting of CNOT gates can have up to CNOT gates, it is natural to expect that Toffoli gates are needed to apply a cont…
Efficient simulation of logical magic state preparation protocols
Samyak Surti, Lucas Daguerre, Isaac H. Kim
Developing space- and time-efficient logical magic state preparation protocols will likely be an essential step towards building a large-scale fault-tolerant quantum computer. Moti…
Sdim: A Qudit Stabilizer Simulator
Adeeb Kabir, Steven Nguyen, Sohan Ghosh +5
Quantum computers have steadily improved over the last decade, but developing fault-tolerant quantum computing (FTQC) techniques, required for useful, universal computation remains…
A quantum algorithm for modular flow
Ian T. Lim, Isaac H. Kim
Entanglement is a defining property of quantum systems. For a subsystem of a larger quantum system, one can formally define an operator known as the modular Hamiltonian, which is c…
Catalytic -rotations in constant -depth
Isaac H. Kim
We show that the -depth of any single-qubit -rotation can be reduced to if a certain catalyst state is available. To achieve an -approximation, it suffices to have a c…
Experimental Demonstration of High-Fidelity Logical Magic States from Code Switching
Lucas Daguerre, Robin Blume-Kohout, Natalie C. Brown +2
Preparation of high-fidelity logical magic states has remained as a necessary but daunting step towards building a large-scale fault-tolerant quantum computer. One approach is to f…
Classical Estimation of the Free Energy and Quantum Gibbs Sampling from the Markov Entropy Decomposition
Samuel O. Scalet, Angela Capel, Anirban N. Chowdhury +4
We revisit the Markov Entropy Decomposition, a classical convex relaxation algorithm introduced by Poulin and Hastings to approximate the free energy in quantum spin lattices. We i…
Chirality, magic, and quantum correlations in multipartite quantum states
Shreya Vardhan, Bowen Shi, Isaac H. Kim +1
We introduce a notion of chirality for generic quantum states. A chiral state is defined as a state which cannot be transformed into its complex conjugate in a local product basis…